Resilient vehicle-wheel.



W. H. SITTS.

l Resmam VEHICLEWHEEL'.

APPLICAION FILED FEB.28, |91?.

Patented Deo. 2,1919;

UNITED sTATEs PATENT o'EEioE.

WILLIAM H. SITTS, OF CHICAGO, ILLINOIS.

RESILIENT VEHICLE-WHEEL.

Application filed February 28, 1917.

To all whom. t may concern:

Be it known that I, VILLuit H, Sirrs, a citizen ot the United States.residing at Chicago, in the county of Cook and State of Illinois, haveinvented ne and useful lmprovements in Resilient Vehicle-Wheels, otwhich the following is a full, clear. and ex` act description.

My invention relates to wheels. and particularly to'resilient wheels formotor driven vehicles.

yThe .object of my invention is to provide means for making the solid'rubber tired wheels for trucks resilient. and whenever the resiliency atany particular point ol the circumference oi the wheel diminishes. torestore such resilience in a quick and siniple manner. rl`his Iacconnilish in the 1nanner hereinafter t'ully described. and asparticularly pointed ont in the claims.

In the drawings: n

Figure l is a side View ot my invention. part being broken away to showthe structure of the outer rim.

Fig. 2 is a View of the opposite side ot the same. f

Fig. 3 is a longitudinal section thereof.

Fig. et is a transverse section taken on dotted line 4 4, Fig. 1, drawnto an enlarged scale.

Fig. 5 is a View similar to Fig. 4 taken on dotted line 5-5, Fig. 2.

Fig. 6, is a fragmentary view showing a portion of the outercirenn'ifereiure of the outer rim.

Referring to the drawings, A represents a suitable wheel having twoconcentric rims. The inner rim B is, preferably, made oi solid metal andthe edges of its outer fiat circumference are provided with outwardlyprojecting flanges a, a.

The outer rim C is of greater circumference than rim B and is separatedand spaced apart from the inner rim by a series of uniformly spacedrubber cushions l), and c, which latter are arranged in equi-distantpairs and are retained in position by radial bolts al, d, the innerportions of which are screw-threaded. 4The screw-threaded portions ofthese bolts are screwed into the in ner rim and the smooth portionsthereof `rim C until'the outer pointed ends thereof iroiect through saidouter rim a sutiicient i r:

Specification of Letters Patent.

Patented Dec. 2, 19N).

serial No. 151.387.

distance to enter the inner periphery ot the continuous solid tire Fseated in the same. l

The outer rim is, preferably. not made in one continuons piece. but itsends are made to lap past one another and are 'fastened together bvmeans of a series of screws or bolts j', that are tapped into the covl.

ered end and extend out through longitn dinally elongated holes /l inthc outer superposedI end. The longitudinal edges oi" the, outer rinibetween their lapped end portions are provided with outwardly projectingflanges y. and said outer rii'n`is kept concentric with the axis ofwheel A by means oi semi-circular plates (i. i, which are oi such widththat when in proper position they close the space between the inner andouter rims on thevoutside of the wheel.

The outer circumferential edges L ot these pass through longitudinallyelongated slots y', j, i-n one ot' said lapped ends and screw into theothers.

The wheels, constructed as herelnbefore described, not only permit of acertain amount oi vertical resiliency, but also per mitl of a certainamount ot yield circumfereutially oF the wheel. This avoids not only ithe wear of the tire due to the vertical pounding of the tire, butavoids the tearing of the. same due to coming in Contact with sharpobjects in the road as ,the Wheels move forward.

Cushions and c are, as hereinbefore stated, arranged in pairs. Onecushion of each pair is concaved between its ends and the other cushionc is conrexed, and these cushions are arranged so that the convexedcushion in one pair will be at the right hand and the eoncaved cushionwill be at the left hand and in the next pair the relative position ofthe conveXed and concaved cushions will be just the reverse. Thisstaggered arrangement of the convexedand eoncaved cushions results in acushions substituted therefor, and the bolts` again inserted inposit-ion to retain the sul Stitnted cushion or cushions in plane.

It desired, the inner uerewthreaded ends of the screws or bolts d may beextended and suitabie .loelnnuts ni nerewed onto the saine Soran to leekSaid bolts and prevent their coming, loose or voluntarilyv nnnerewing'from the inner rim.

. That l claim as new is:

l; A resilient nheel, eonnnrising` an un broken inner rim, a split outerrim, renlient material spacing seid riml apart, and n1 lanstorjmaintaining the eurvalure ot Said outer rim, comprisingneluheireular platesy Vn'hoae outer edges are Connected to said outerriin and whose ends are secured together for limited relative movement.

2. A wheel ot the kindspecified having an inner and an outer eoneentrierim, rubber Cushions interposed between and Spacing Said rime` apart andarranged in pairs one of eaeh pair being eonrexed and the other eoneavedbetween its ends, and al continuous solid rubber tire -Seated on theperipher)Y ot the outer rim.

3. 'A Wheel ot the kind apeeil'ied haringn an inner and an outerLoneentrie rim. rub- .ber cushions inserted between and spacing 'Saidrinus apart, a continuous solid rubber tire seated in the eireumiereiuseoll the outer fini, land radial bolts the inner ende` ol'v which areremovably secured in the inner riin and pass through sa id cushions; ande::-

tend through the einer rim into the inner periphery oit' .said tire.

el. A wheel ot `the kind specified haringji a continuous inner rim andan outer eoneen trie riin, rubber euehions inserted between andSeparating said rims, al Solid rubber tire Sented in :said outer rim,and radial bolts suitably neeured in said inner rim and extendingthrough enlarged openings in said. outer rim and into the inner cireuin-`ierenee of said tire.

vA wheel of the kind speeiied haring a eontinnorm` inner rim. an outerrim` said riin haringl merlaiiping ends, Screws that pass throughenlarged opi-innige in one oi said orerlripping1 ende4 and screw intothe other, rubber euehione` ineerted between and separating Said rims` aAaolid rubber tire seated in ISaid outer rim, and radial boite suitablysecured in said inner rim and eX- tending through eaid cushions throughenlarged openings in said outer rim and into the inner eireiunferenee etsaid tire.

(i. A wheel of the kind specified, having au inner rim, and a splitouter rim the ende ot which are arranged so that they overlap and have alimited sliding" movement against each other. rubber cushions interposedbetween and Spacing' said rime apart, a solid rubber lire eeatednin tbeouter Cireumierenee ol: the outer rim and subetaw tialljv' semi-circularplatea engaging' and :didingly eonneeting the ende of Said outer run. f

ln wit-neer; whereof l hare hereunto eet my hand this Leith da)v oiIJanuary, 1917.

'WLLllvI H. SITTS. ililitnesses:

Funnix l1 Srr'rn, hun): n i). Tnotmeon.

